There are various reports on this now, but this one is the most clear on the exact figures. There are finally figures on revenue, which Elon had been silent about. Basically Twitter revenue fell 35% YoY for 2022Q4 (to $1.025 billion) and current internal goal is 40% lower YoY for 2023Q1 ($732 million).
Twitter’s fourth quarter revenue fell about 35% year over year to $1.025 billion, a top ad executive revealed at a staff meeting Wednesday, the most detailed sign yet of how much revenue has fallen. That was 72% of Twitter’s internal goalfor the quarter, according to a slide showed to employees. ...
www.theinformation.com
We know from previous reports the net increased debt load is about $1.1 billion annually so about $275 million quarterly, which is about 23% of revenue.
That means to just break even, they have to cut costs by ~60% or more YoY. That explains all the drastic measures taken so far (including defaulting on leases). Also shows how meaningless the engagement metrics that keep being trotted out are. As I said, engagement doesn't bring in the money.